Motorists still need to use extreme caution when traveling throughout west central Minnesota, the agencies warned.

In addition, the statement said:

Another storm system is forecasted to move into west central Minnesota this afternoon and motorists can expect deteriorating road conditions later this afternoon through Saturday morning. Mn/DOT and the Minnesota State Patrol will continue to monitor road conditions and, depending on the severity of the next forecasted storm, will determine whether roads will need to be closed later today.

Mn/DOT reminds motorists to be patient while snowplow operators work to improve driving conditions and prepare for additional snowfall. The majority of snowplow crashes take place during "clean up" when motorists feel they can resume their normal speeds.

In North Dakota, both interstates 29 and 94 remain closed and no travel is advised in the state's eastern stretches.

In a joint statement from the North Dakota Department of Transportation and the North Dakota Highway Patrol said:

I-29 from the South Dakota border to Grand Forks; and I-94 from Jamestown to Fargo are closed due to freezing rain, heavy snow and numerous stranded semis.

The roadways are impassable and it is against the law to drive past a road closure device on a closed road.

There were an estimated 35 crashes resulting in four injuries during yesterday's storm. Thirty to forty people have been rescued. The number of vehicles removed is unknown.

In South Dakota, I-29 remains closed from the North Dakota border to Brookings.

West Fargo police advised only essential travel within the city, as numerous roads remained blocked due to heavy snow and stalled vehicles.

City snowplows were keeping emergency routes open and had started to clear some major secondary roads, Assistant Chief Mike Reitan said. Police are impounding vehicles in the way, he said in a news release.

As the storm resumes this afternoon, the city will go back to clearing only snow emergency routes. Plows will be pulled if conditions become life-threatening.

Other road closures and notices in effect for North Dakota:

- NDDOT has LIFTED the No Travel Advisory for Devils Lake, Valley City, Jamestown, areas east of Bismarck and surrounding areas. A Travel Alert remains in effect for these areas. Conditions are such that motorists can still travel, but may experience hazardous winter driving conditions due to winds causing blowing and drifting snow and reduced visibility. Motorists should be advised that snow drifts may be encountered at structures and sheltered areas and are encouraged to reduce speeds.

- No Travel Advisory remains in effect for the eastern portion of the state due to high winds causing blowing snow. Motorists should be advised that roadways may be reduced to a single lane or become blocked by snow drifts at structures and sheltered areas.